Claerwen Reservoir Rainfall ForecastUnited KingdomWLPowysClaerwen ReservoirToday 27 Apr55%Sun 28 Apr50%Mon 29 Apr55%Tue 30 Apr45%Wed 1 May25%Thu 2 May35%Claerwen Reservoir rainfall forecast issued today at 1:38 am. Next forecast at approx. 3:38 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet an account to remove ads